Print out matrix weblink at the end of runs in addition to at the beginning

[inktomi]

As a developer, I want to be able to access the matrix weblink at the end of the output, so that I can easily find it when CI might truncate console output to the final lines. This isn't a big deal, but would be a nice quality of life improvement that would save having to click to "view the full output" just to find the weblink url.

On Circle CI, and other CI systems, console output is truncated to just the final few lines. Because Flank only prints out the weburl at the start of a run, it's not available without going through an additional step to view the job's full output.

The matrix weburl and id should be printed both at the start and the end of a run.